different between compound vs polyhydride
compound
English
Etymology 1
Possibly from Malay kampong, kampung (“group of buildings, village”), via Dutch or Portuguese .
Pronunciation
- (UK) IPA(key): /?k?mpa?nd/
- (US) enPR: k?m'pound, IPA(key): /?k?mpa?nd/
Noun
compound (plural compounds)
- An enclosure within which workers, prisoners, or soldiers are confined
- An enclosure for secure storage.
- A group of buildings situated close together, e.g. for a school or block of offices
Synonyms
- (enclosure within which workers, prisoners, or soldiers are confined): gaol/jail, pen, pound, prison
Translations
Etymology 2
From Middle English compounen, from Middle French componre, compondre (“to put together”), from Latin compon?, from Latin com- (“together”) + pon? (“to put”).
Pronunciation
- adj. and noun (UK) IPA(key): /?k?mpa?nd/
- adj. and noun (US) enPR: k?m'pound, IPA(key): /?k?mpa?nd/
- verb (US, UK) enPR: k?mpound', IPA(key): /k?m?pa?nd/
- Rhymes: -a?nd
Adjective
compound (not comparable)
- composed of elements; not simple
- a compound word
- 1725, Isaac Watts, Logick, or The Right Use of Reason in the Enquiry After Truth With a Variety of Rules to Guard
- Compound substances are made up of two or more simple substances.
- (mathematics) dealing with numbers of various denominations of quantity, or with processes more complex than the simple process
- compound addition; compound proportion
- (music) An octave higher than originally (i.e. a compound major second is equivalent to a major ninth).
Synonyms
- (composed of elements): composite
Antonyms
- (composed of elements): simple
Derived terms
- compound chocolate
- compound interest
- compound leaf
- compoundly
Translations
Noun
compound (plural compounds)
- Anything made by combining several things.
- (chemistry, dated) A substance made from any combination elements.
- (chemistry) A substance formed by chemical union of two or more ingredients in definite proportions by weight.
- (linguistics) A lexeme that consists of more than one stem; compound word; for example laptop, formed from lap and top.
- (rail transport) a compound locomotive, a steam locomotive with both high-pressure and low-pressure cylinders.
Synonyms
- (anything made by combining several things): amalgam, blend, combination, composite, mix, mixture
- (word): compound word
Hyponyms
- (word): closed compound, hyphenated compound, open compound
- (chemistry): chemical compound
Translations
Verb
compound (third-person singular simple present compounds, present participle compounding, simple past and past participle compounded)
- (transitive) To form (a resulting mixture) by combining different elements, ingredients, or parts.
- to compound a medicine
- (transitive) To assemble (ingredients) into a whole; to combine, mix, or unite.
- We have the power of altering […] and compounding those images […] into all the varieties of picture.
- (transitive) To modify or change by combination with some other thing or part; to mingle with something else.
- (transitive, law) To settle by agreeing on less than the claim, or on different terms than those stipulated.
- to compound a debt
- (transitive) To settle amicably; to adjust by agreement; to compromise.
- (intransitive) To come to terms of agreement; to agree; to settle by a compromise; usually followed by with before the person participating, and for before the thing compounded or the consideration.
- 1602, Richard Carew, Survey of Cornwall
- [Cornwall] compounded to furnish ten oxen after Michaelmas for thirty pounds.
- Compound for sins they are inclined to / By damning those they have no mind to.
- 1602, Richard Carew, Survey of Cornwall
- (transitive, obsolete) To compose; to constitute.
- (intransitive, finance) To increase in value with interest, where the interest is earned on both the principal sum and prior earned interest.
- (transitive) To worsen a situation.
- (horse racing, intransitive) Of a horse: to fail to maintain speed.
- 1855, The Sporting Review (volume 34, page 240)
- At the hill, the Warrior must have been at least ten lengths in front of Wild Dayrell; but he compounded about 200 yards on the T. Y. C. side of the Red House.
- 1855, The Sporting Review (volume 34, page 240)
Usage notes
The usage in sense 9 above, “to worsen a situation” is widespread but not wholly accepted. The original meaning of the word (see senses 4, 5 and 6 above) implies resolution of a problem, not worsening. It has been suggested (Fraser 1973) that the reverse usage arose by confusion with phrases such as compound interest.
Synonyms
- (to come to terms of agreement): agree
- (to put together): assemble, blend, combine, join, join together, mix, put together, unite
- (to add to): augment, increase
- (law: to settle by agreeing on less than the claim): settle
- (to compose): form, make up; see also Thesaurus:compose
Derived terms
- compoundable
Translations
References
Further reading
- Compound in the Encyclopædia Britannica (11th edition, 1911)
compound From the web:
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polyhydride
English
Etymology
poly- +? hydride
Noun
polyhydride (plural polyhydrides)
- (inorganic chemistry) Any compound containing many hydride moieties
polyhydride From the web:
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